High-pressure generatorplunger pump is suitable for the petroleum, chemical industry, fertilizer industry as process pump, metallurgy, rolling mills are of high pressure water descaling, construction, shipbuilding, sugar, paper, chemical industry, such as high pressure water descaling cleaning, oil field water injection, the boiler feed water, the power source of the hydraulic machinery, and need of food, pharmaceutical and other produce high pressure liquid part of the transmission medium for fluid without solid particles.